Sectional match plate



P 1948- E. E. REDER, JR

SECTIONAL MATCH PLATE Fil ed May 20, .1945

ljiiz Patented Sept. 7, 1948 gamma meant? fEinilfEdward new, 1a,Chicago,-

v I mitten tam.resumesi ,1

plate, comprising a main frame, supporting removable pattern Sections, a'series ofjiclamping' arrangements which are practical from afoundi'ngstandpoint', and fast in operation, and ar: ranged in such manner asto preventfthe loss of the Iclamping members when theiniaten plate is'in" operation. and wherithesectionsj are being removed" or replaced;second, to utilize the edge of the drag member" of the'fiaskastolflendits weight and'supporttothe pattern sections of the main frame; third;to provide a frame to support the 'pattem section's therein, and fwhichwillfpermitjthe shrinkage of the pattern'section and still remain firmin the section frarnafland fourth, to provide apr'actical sectionalmatchplate from a founding stand-point, having removable sections.

which will remain in. afirrn, rigid position when clamped intheir-respective positions in relation to the main frame.

One form of the invention is illustrated in the accompanying drawing inwhich: 1

Fig. 1 is a plan view of the entire match plate Fig. 1A is asectiontakenonline IA of Fig. 1; Fig. 1B is a section taken on line IB of Fig.1; I Fig. 21s a plan view of a pattern sectionframe; Fig. 2A is a sideview of the same name- Fig.3 is 'a' plan view of a' 'clam'ping strip TFig. 3A is a side view of thesame strip;j:: Fig. 4 is a side view of thematch plate "shown inF aL- The main frame 1, the removable attern ec"contactbetween the recessed openings of frame :I,

and the saidsection. frames 2-i-2"--2--2, to permit easy assembly ofthefsai'dlsection, frames 2-:

2 +2--f2, when I installed in. the recessed openings in frameI,,iwithoutf having an excessive amount of clearance'between the saidsection: frames 2-2;2 2, and the recessed openings 'I'hejpart unc es-9,.of the pattern section frames Z 52 i -2- 2; (see 191 of Figure .2) whichare recessed t oallowv the adjustable clamping of theniatch plate;enough clearance being alf lowedbetw'een the said clamping strips 3-3-3+3, and the. recessed parts 9-.9--9-9, to per.-

Ini t easy adjustment of the "said clamping strips s 'ewiifm the. Figure1 .Inthe frame 1, re-

cessed provisions areQ-also; utilized to receive the adjustable,clamping" strips 3 -3--3-.-3, said recessed'par'ts of frame II, havingenough clearance to the match plate};

The ustable.

Figure 3,1'and thel-r'eniovable runner bar '4, see

tio'n frames 2-2-'z-2, (wm' iiiin this instance j frame l,- and frames2-2-2-2; are metal), the

adjustable clamping strips 3-3-3-3, the removable runner bar 4, therunner bar screws 5-5, the adjustable clamping strip screw 6--B-66, andthe pattern sections III-lfl-lll-lll (which in this instance is athermosetting casting resin) see Figure 1 and Figure 1A. (the patternsections, which will be specified as plastic pattern sections, are castin the metal section frames 2-2-2-2) constitute the entire sectionalmatch plate.

In the main frame I, Figure 1, one or more recessed openings, (four inthis instance) are provided to receive one or more removable metalsection frames 2-22-2, see Figure 2, (four in this instance) the saidsection frames 2-2- 2-2, have flanged edges l2-l,2--l2--l2, which fitinto the said recessed openings of frame I. enough clearance beingallowed at the point of FigureYIA; (whichjffurictlons also as a clampingbar) in conjunction with the tightening of the. runner bar screws 5 -5,andlthe adjustableclamping strip screws fi-g-fi-G-fii; securely clampsall the said sections 'I of the matchplate, securely in the recessedopeningsin frame I.

The runner, ha isjremovable from the frame I, .t o provide for;different typerunner bars, when needed, and is securely held :in placeby tightenm t ss we imiii f e F ur D the sa a aner bar 4, a'sgshowningtheul 'igure 1A, and Figure 1, rests directly on the flanged edgesl2-l'2-- l'2l2, of the said metal section frames 2-2- '22, which contactthe runner bar 4. The portion of the frame I, lying directly under therunner bar 4, is. recessed below the surface of the frame I, to permit asufficient amount of clearance between the runner bar 4, and. the bottomof the said recess in frame I, to attain a clamping action when therunner bar 4, contacts the flanged edges l2-l2--i2--l2, of the saidframes 2-22--2, and the screws 5-5 are tightened.

The adjustable clamping strips 3-3-3-3, Figure 3, have elongatedcounter-bored holes 8-8- 8--8, which receive screws 66--6--6, saidcounter-bored holes permit easy adjustment of the permit. easv dlustmentof the said clamping. strips g s-1: 3 m: not interfere with thefoundrvffiasEwhenTsamefis set in position on said clamping strips 3333,which in conjunction with the said screws 6-E-6-6, permits said clampingstrips 3-3-3-3, to be set securely in position when clamping the saidmetal section frames 2-2-2-2, in the recessed openings provided in theframe I.

The removable runner bar 4 and the adjustable clamping strips 333-3,provides a. quick method of removing or replacing, and. inter-.

changingthe said sections 2'.2:-2?.2, of: the. frame I, without entirelyremoving the screws 5--5, or 6666, from the frame I, first, by looseningthe screws 5-5, in the runner bar 4,

which releases the clamping pressure exertedon the flanged edgesl2--l2l2-,-l=2 contacting.

the runner bar 4, of the said section frames.22-

2-2, and second, by loosening thescmwsi' 6-6, of the clamping strips33-33, andslida ing back the said clamping strips 33---3--3,' away fromthe recessed parts 8-9-9-9, of the said section frames 2+2 -2'-2.

The adjustable clamping strips 3,33'-3- and the removable runner bar" 4,are to be: lccatedon; theframe I", in any such location as toaccommodate the number or sections in the frame i and to meet thefoundry requirements.

The recessed openings in the frame'l', which receive the section frames2--2-2-2, are in such location as to allow one or more flanged edges [2of the section frames 2--2*-2' 2 (in thisi'nstanoe eight flanged edges I2, of theses:- tion-frames-'22-2-2) to extend partly beyond the insideoftheflask line ofthe frame l, permitting the foundry flasktorest on oneor more of the flanged edges i2", of'the said-metal sec tion frames2'2-2--2, thislocation'of the said sections 2-2-2-2; when th'e" flask issetfi'n position on the frame the sections of th matchplate to withstandthe shock and stress of sand molding operations.

The parts I! and 1 of the. section frames 29-2- 2-2, aroundwhich theplastic pattern sections lib-ID -l'U-IO are cast, are tongued or grooved(tongued in the present instance) said tongue],

(which runs completely around the inside. of the. said frames 2-2-2-2)being. on aparallel with the surface of the match plate and-of a uniformwall thickness to permit a slight. shrinkage or expansion of the saidplastic pattern sections.

l 0l 0-l'B'-l l! and-still remain securely tongued in the said sectionsM-JiL-IU-JU', the parts of the said pattern sections |0'|'0-lU--|0,which contact the metalsection' frames; 2-2-2-2; after theplasticpattern sections I0'-iU--lfli0', are cast, (in this instance athermosetting casting resin is referred to) inthe metal section frames:2-2-2-2, and are-protected from chip-' ping or breaking when subjectedtothe rough handling of foundry molding operations.

l additionally supports ali The metal section frames 222----! and themetal frame I, can be adapted to accommodate pattern sections made ofother materials suitable to foundry molding operations.

The tongue 'I and adjoining parts H, which contact the plastic patternsections Illl0-Ill- 10, can be coated if necessary, with a syntheticrubber paint or other suitable parting agent to provides. non-adheringsurfacev which will allow the! piasicpattern sections l:ll-l 0-4 Il-l 0,to shrink or expand independently of the said metal frames 22-2-2 andprevent the said sections lU-ifl-lfl-IO from breaking orcracking'w-henusing a material for the said pattern sectionslwhioh doesshrink or expand.

I am aware that prior to my invention, seca combination broadly; but Iclaim:

A ma tchplate comprising in combination. a unitary rigid main framehaving sides, ends and a centrall'y disposed; member forming at leasttwo openings. in the frame, said sides, ends and centrally disposedmembers beingv recessed about the sidesffacing said openings, flanged.pattern c r ying. blocks disposed in said openings in such.

fashion thatthe flanges on said blocks are received' in the recesses. insaid openings, clamping strips vre'movably secured to. said main frame.a slot in' each clamping strip whereby said strip maybe movedjover anouter flange of. an. adjacent pattern carrying block to enga e saidflang v andclampsaid block'into said recessed opening and'a centrallydisposed removable, runner bar adaptedto be positioned on said centralmember and over an inner flange of: each. pattern block,

wherebyjsai'd inner flange may be clamped; into said recessed opening.each clamping, strip andv runner bar'copperati'ng'to form a clampsecurring a pattern block in'the recessed opening provid'edtherefor. H pI EDWARD REDER, JR.

REFERENCES CITED The following-references are. of record. in the2,394,394. Miller Feb. 5, 19,46.

